Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4571580 | Sonic temperature warning device for lids of cooking vessels | Hans Winteler | 1986-02-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4571580 | Sonic temperature warning device for lids of cooking vessels | Hans Winteler | 1986-02-18 |